The mother of a murdered British backpacker has written a scathing letter to US President Donald Trump after her daughter's killing appeared on the White House's list of 78 underreported terror attacks.

"My daughter's death will not be used to further this insane persecution of innocent people," Rosie Ayliffe wrote in a statement posted to Facebook.

Mia Ayliffe-Chung, 21, was stabbed to death in Queensland, Australia, in August 2016, along with fellow backpacker 30-year-old Tom Jackson.

Australian police almost immediately ruled out terrorism or radicalization as a motive for the killing.

"The possibility of Mia and Tom's deaths being consequent to an Islamic terror attack was discounted in the early stages of the police investigation... Any fool can shout Allahu Akbar as they commit a crime," Rosie Ayliffe wrote in her statement.

'Led into ... darkness and hatred'

On Monday, Trump attacked the media for not adequately reporting on incidents on terrorism worldwide.

Later, the White House distributed a list of 78 "major" terror attacks since September 2014, which it said were either executed or inspired by ISIS and didn't receive adequate press attention.

Many media outlets have already responded with numerous examples of stories on the attacks -- CNN covered 61 of the 78 incidents on the list.

In her statement, Rosie Ayliffe called out what she saw as the "vilification" of entire states or religions.

"We encountered nothing but respect and hospitality from people who are committed to courtesy and honoring their fellow human beings. This vilification ... is a terrifying reminder of the horror that can ensure when we allow ourselves to be led by ignorant people into darkness and hatred."

CNN did not report on Ayliffe-Chung's death at the time, after terrorism was ruled out as a motive.